Fluid Bed Dryer

FLUID BED DRYER – BATCH TYPE

 

Hot gas is supplied from the bottom of B-FBD through the perforated plate to fluidize and dry the powder materials. Feeding, drying, and discharging processes are repeated in a batch process. There are two options in the discharging process: rotating the perforated plate by a control motor and discharging all of the material into the bottom hopper. The other option is by a centrifuge stream generated by a direction-type perforated plate to discharge all amounts of powder from the wall of the B-FBD.             

APPLICATION TARGETS

 

Drying, solvent recovery, cooling, heating (crystallization), etc.

 

APPLICATION

 

Synthetic resin (PVC, PP, PE, ABS, MBS, PPS, etc.), foods, chemicals, fertilizer, feed, agrichemicals, ceramics, pigment

 

FEATURES

 

Materials dried in a constant-rate drying are processed in a wet-bulb temperature, enabling drying to low moisture content, under a relatively low temperature.

Minimized damage to the material. Suitable for granules or crystallized materials.

High drying efficiency by installing the heat exchanging tubes or panels, which cover 80% of heat exchange process.

Required gas amount is small due to the large heat exchanging area of tubes or plates installed inside the Fluidized Bed Dryer. Therefore, the sizes of each equipment of the system, such as the fluidized bed body, blowers, and dust collecting is minimized.

B-FBD is suitable especially for the material which requires drying in the decreasing-rate drying zone.

Easy to remove the heat exchanging media.

All of the powder materials are easily discharged. Also, the heat exchanging media easy to remove. CIP (cleaning in place) is also available

Key features and characteristics of a Fluid Bed Dryer include:

Fluidization: The primary feature of a fluid bed dryer is fluidization, which occurs when air or gas is passed through a permeable bed of particles. This causes the particles to behave like a fluid, resulting in increased surface contact and efficient drying.

Uniform Drying: The fluidization process ensures that each particle is exposed to the same drying conditions, leading to uniform drying and minimizing the risk of overheating or over-drying.

Rapid Drying: Fluid bed dryers are known for their ability to achieve rapid and efficient drying due to the high heat and mass transfer rates achieved through fluidization.

Controlled Temperature: The temperature of the drying air or gas can be controlled precisely, allowing for optimal drying conditions tailored to the specific material being processed.

Batch or Continuous Operation: Fluid bed dryers can operate in both batch and continuous modes, depending on the specific equipment design and application.

Multi-Stage Processing: Some fluid bed dryers can be equipped with multiple chambers or stages to accommodate different drying and processing steps, such as drying, cooling, granulation, or coating.

Particle Movement: The fluidization of particles can cause them to move within the bed, facilitating mixing and promoting uniform drying.

Reduced Dust Formation: The fluidized particles tend to create less dust, making fluid bed dryers suitable for materials that are sensitive to dust contamination.

Various Material Applications: Fluid bed dryers are used for drying a wide range of materials, including pharmaceutical granules, powdered chemicals, food products, minerals, and more.

Energy Efficiency: The efficient heat transfer and rapid drying capabilities of fluid bed dryers can contribute to energy savings.

It's important to note that fluid bed dryers come in different configurations, sizes, and designs to suit various applications and production requirements. When considering the use of a fluid bed dryer, factors like material characteristics, required drying rates, desired particle size distribution, and other process parameters should be taken into consideration.